Results 31 to 40 of about 14,224 (261)

Observation of contact angle hysteresis due to inhomogeneous electric fields

open access: yesCommunications Physics, 2021
Wetting of surfaces can be affected by surface roughness, presence of surface chemical defects, or by electric fields. Here, the authors perform electrowetting experiments on microstriped electrodes and show that the droplet’s static contact angle ...
Wei Wang   +3 more
doaj   +1 more source

Surface-Wetting Characteristics of DLP-Based 3D Printing Outcomes under Various Printing Conditions for Microfluidic Device Fabrication

open access: yesMicromachines, 2023
In recent times, the utilization of three-dimensional (3D) printing technology, particularly a variant using digital light processing (DLP), has gained increasing fascination in the realm of microfluidic research because it has proven advantageous and ...
Jeon-Woong Kang   +4 more
doaj   +1 more source

Studying of the Contact Angle Hysteresis on Various Surfaces

open access: yesMATEC Web of Conferences, 2016
This paper is devoted to investigation of the contact angle hysteresis on various surfaces. It was carried out by two different methods: measuring the advancing and the receding contact angles and measuring the contact angles at water droplet evaporation
Kirichenko E. O., Gatapova E. Ya.
doaj   +1 more source

Water-Repellency and Anisotropic Wettability of Micro-Grooved Polymer Surfaces [PDF]

open access: yes한국정밀공학회지, 2020
Superhydrophobicity and anisotropic wettability can be simultaneously achieved by simple groove pattern on a surface. To verify those characteristics experimentally, we fabricated the micro-grooved surfaces with four different groove widths.
Daehee Kwon, Unyoung Ko, Sangmin Lee
doaj   +1 more source

Apparent contact angle and contact angle hysteresis on liquid infused surfaces [PDF]

open access: yesSoft Matter, 2017
The apparent contact angle and contact angle hysteresis of a droplet on liquid infused surfaces have strong dependence on the relative size between the droplet and its surrounding wetting ridge.
Ciro Semprebon   +2 more
openaire   +5 more sources

Finite element study of displacement controlled fretting in cylinder contact with different axis crossing angles

open access: yesAdvances in Mechanical Engineering, 2022
There is inevitably an angular offset during contact of mechanical structures such as roller bearings or gears. Most of the previous contact models involve the contact between two parallel cylinders.
Tieneng Guo, Ruguo Ji, Yunfei Ma
doaj   +1 more source

Driving Scheme Optimization for Electrowetting Displays Based on Contact Angle Hysteresis to Achieve Precise Gray-Scales

open access: yesFrontiers in Physics, 2021
As a new display technology, electrowetting display (EWD) has many excellent display characteristics, such as paper-like, low power consumption, quick response and full color.
Li Wang   +7 more
doaj   +1 more source

Mechanism of Contact Line Movement of a Droplet Spreading Over a Solid Surface

open access: yesMATEC Web of Conferences, 2017
The contact line movement, advancing and receding, of the distilled water droplet was studied on the polished and laser patterned aluminum surfaces.
Feoktistov Dmitry V.   +2 more
doaj   +1 more source

Wetting of doubly periodic rough surfaces in Wenzel’s regime

open access: yesMATEC Web of Conferences, 2018
In this work we present preliminary results from our numerical study of the shapes of a liquid meniscus in contact with doubly sinusoidal rough surfaces in Wenzel’s wetting regime.
Iliev Stanimir   +2 more
doaj   +1 more source

Closed-Form Expressions for Contact Angle Hysteresis: Capillary Bridges between Parallel Platens

open access: yesColloids and Interfaces, 2020
A closed form expression capable of predicting the evolution of the shape of liquid capillary bridges and the resultant force between parallel platens is derived. Such a scenario occurs within many micro-mechanical structures and devices, for example, in
James Bowen, David Cheneler
doaj   +1 more source

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